What is 16x squared minus 12x plus 9?

Answer 1

It's a second degree trinomial in 'x'. Its numerical value depends on the value of 'x'.

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The first contributor observed:

Very nice exercise with the quadratic formula. But it doesn't apply here.

The formula is used to solve a quadratic equation, but there's no equation

here ... the question doesn't say that the trinomial is equal to anything.

If the trinomial were equal to zero, then your application of the formula

is the way to solve it; but as it stands, there's nothing to solve.

Also BTW: (B2 - 4AC) < 0 doesn't mean no roots. It means a pair of imaginary

or complex conjugate roots. A quadratic equation alwayshas two roots, even

though they may be equal or imaginary.